释义 |
Sylvian, a.2 Anat.|ˈsɪlvɪən| [ad. F. sylvien, f. the name of François de la Boë Sylvius, a Flemish anatomist (1614–1672); often erroneously referred to that of Jacques Dubois, latinized Jacobus Sylvius, an earlier French anatomist (1478–1555).] Described by or named after the anatomist Sylvius: applied to certain structures in the brain, viz.: Sylvian aqueduct (aqueduct of Sylvius), the passage between the third and fourth ventricles of the brain. Sylvian artery, the middle cerebral artery. Sylvian fissure (fissure of Sylvius), the fissure between the anterior and middle lobes of the cerebrum. Sylvian fossa, a depression of the cerebral hemispheres in the middle of the Sylvian fissure, containing the island of Reil. Sylvian ventricle, the fifth ventricle of the brain.
1828J. Quain Elem. Anat. ix. 613 The angular part of the anterior lobe..is included between the internal termination of the fissure of Sylvius, the longitudinal fissure, and the commissure of the optic nerves. 1839–47[see Rolando a]. 1849S. G. Morton Illustr. Syst. Human Anat. 547 The insula [of Reil] consists of five or six small convolutions grouped and concealed within the Sylvian fissure. 1871Huxley in Darwin Descent of Man vii. (1874) 204 In the human foetus, the sylvian fissure is formed in the course of the third month of uterogestation. 1888[see Reil]. 1890Billings Med. Dict., Sylvian fossa..Sylvian ventricle. 1899Allbutt's Syst. Med. VI. 773 Lesions in or about the nuclei in the gray matter of the Sylvian Aqueduct. Ibid. VII. 608 The middle cerebral, or Silvian artery, is practically the direct continuation of the internal carotid. 1939[see Reil]. 1980A. Silverstein Human Anat. & Physiol. xiii. 278/2 Viewed from the side, the cerebrum looks something like a large mitten, with the wrist at the back and the fingers at the front of the head. The ‘thumb’ of the mitten is separated from the remainder by another prominent groove, the lateral fissure or fissure of Sylvius. |